Shock-absorber for motor-car springs.



EVANS.

SHOCK ABSORBER FOR MOTOR 0A3, SPRINGS.

APPLICATION FILED J' H.130, 191%.

fitented 623%. 22, 191 iv wxmasss w AYTTORNEY QLM/ n To Ell 3. Eli i rum.

WILLIAM EVANS, 0F OAK LANE, PENNSYLVANIA, ASSIGNOR TO WILEIAM EVANS,

Application filed January 30. 191%.

To (1U 11.2 2012: it may won/21w lie it known that l. 1mins l'h'ANs, a citizen of the-United Hates, residing at Oak Lane. in the county of Montgomery and State of Pennsylvania. have invented certain new antluseiul improvements in Shock- Absorbers for Motor-Car Springs, of which the "following is a specification.

My invention has relation to a shock absorber for application to terminal members of motor car springs; and in such connec tion it relates particularly first, to the constructive arrangement of the absorber; seo- 0nd, to means arranged in the absorber,

' whereby it may be adjusted and maintained in avertioal position for eiiective notion in its established relation with respective terminal members oi the :ar spring; and thircl tothofacility withv which mechanical means thereof may be manuall adjusted to maintain the (lefinetl vertical relation of the absorber inconncction with the terminal members of the said spring.

The nature, cha acteristic features and scope-of proim'ontion Willbc more fully understood from the following description taken in connection with the accompanying drawings forming; part hereof, in whioh-- I ,Figure his a sitle elevational view of a shock absorber in a lic-ation to the respective. terminal members of leafonotor our springs, showing. the vertical position the absorber is CRlSGll to assume for operative relation and for maintaining such ition with respect to me terminal members ofthe said spring, for effective action; the said view embodying the "essential main features 'in conjunction with the constructive 1.1

rarigement of the absorber of my intention. Fig. 2, is an enlarged detached side View, partly inbrelren section of the absorber, showing 'the' strap supportin 'ly holding parts together, oil feed and prci rretl means and manner o l manual adjustment in conjunetion with the said strap of theebsorber to vertical position with respect t terminal members of said spring and for maintaining the same when once adjusted for effective action of the absorber, in vertical sectional view on the line a;. :r. of Fig. 2, showing also in broken so. the

two helical springs arranged Within each other of the absorber. Fig. s is a top plan.

Specification of Letters Patent.

EVANS; AND BQBEBT EVANS, A FIBRE 0F PHILADELPEXA, PENNSYL- VAMA, TRADING AS JOHN EYANS SGNSJ SHOl'JK-ABSORBEP, FOR MOTGB-CAR SPRINGS.

iai'en'teti Sept.

Serial No. 315,348.

I view of Fig. 1, of the absorber in an operatire relation in connertion with the car spring. is a transverse-sectional View on the line 1 y. of Fig. 1; and Fig.6, is a side elcvational view in broken section of the upper part of the strap for lockingly engaging a toothed or ribbed fllSli and ith a bolt in connection with oneof the terminals of the motor car spring and for adjusting the 1 absorber therewith.

Referring to the drawings, 0. 33151 o are terminals of a leaf spring A, as shown in Fig. 1, having a shock absorber B, in a verti cal establishecl relation with such terminals according to my invention and as hereii; after more fully explained.

The absorber B, consists of a vertical recessed casting I), having a grease supply reservoir on both sides in legs of the se'icl casting closed by removable pings Z2 as illustrated inFig. 3. These reservoirs have obliquely leadingtherefrom narrow grease ducts or ways 72 and b", to hollow vertical bearings If and b for inverted U-shoped straps b, which extend through a: two-part cylindrical housing 5 as shown, sliding one part Within the other as clearly shown in Fig. 52, and in which housingare seated helical sprin a and 0 preferably arranged one within the other, as clearly shown in broken section in Fig. 3. These straps supportingly 'i'naintain the several parts of the absorber in operative relation by means of nuts 2), plied to the said strap below the said hou ing 0, clearly illustrated in Fig. 2, and which'tWo-part slidatble housing rests in normal position on the said nuts in whatever of the said strap 5 Bolts b and b. are provided in frictional nal portions a and o, of the spring A, clearly shown in Figs. 1 anti 3. These bolt. are internally bored out to form channels 5 and Z1, leading m grease reservoirs 5 and 5 as clearly shown in Fig. 3. These reservoirs are closed by removable plugs b, as also clearly illustrated in Fig. 3. The er- 5 rangement for the supply of grease as abo e 5 explained through the bolts to the bearings Q2 and a or the terminal portlons'a and a, of the spring A, insures on easy noiseless Frictional movement, of the said terminals in Contact with bearings a em? a of the tel-mi and a", in longer terminals'of the bolts 5 osition given on the two terminal portions correspond with V absorber be found to be out of such true vertical. alining relationship with the terprovision in the absorber for thorough lubrijects of my invention, what I claim, as new whatever vertical spring bearings a and a can beestablished, while the absorber is maintained in true vertheir connection with the shock absorber B, as dwill'be clearly understood -firpm Figsgl an '3.

The straps b, at the upper arciiedgportion thereof are grooved azidjiibbgdxaifibfi, to a complementa'l ,-.disk b, for manually adjusting the saidstraps in connection with the bolt b and its jam nut 6 so as to firmly secure the strap 717,, in position the absorber is given and which is held in such position by means of the said nut. On the bolt b, at one endportion is mounted an eccentric b, and about the eccentric in the casting b, is arranged a series'of recesses o1- pockets 12 in which are insertedremovable pins b. Upon removal of these pins the eccentric can be shifted to adjust the absorber proper'ivithz: respect to the terminal bearing (1 When the pins are again inserted the bolt will be held by the said eccentric and locked by the jam nut 12 applied to the threaded end of the same to thus establish a firm frictional. engagement of the-terminal bearing a", of the spring A, with the said bolt 6 and lubricated thereby and correspondingly the terminal bearing a, of the spring A, will not only be held, but also locked by the toothed locking'disk 6 with the complemental portion 6", of the strap 6", as illustrated in Figs. 1, 2 and 3.

Effective cushioning action without squeak or noise of the absorber in relation with the tical aliningposition by the manner of manual-adj ustnient above explained. Should the miii'al members of the spring A, by simply loosening the jam nuts 6, and 6, respec- ,tively, and turning the disk I), or the eccentric b", after first removing the series of 'pins 5 from about the eccentric, can this be manually accomplished Moreover, the

cation of working parts insures the easy noiseless movement of the same, and hence efi'ective action of the said absorber.

Having thus described the nature and oband desire to secure by Letters Patent is 1. A shock absorber provided with a strap havinga part to engage a complemental disk and having a bolt arranged to lockingly hold said member together and a bolt rying an eccentric with locking means in connection therewith, inrombination with carspring terminal-bearings in connection with said bolts and helical springs supportingly held in operative position by. said strap, substantially as and for the purposes described.

2. A shock absorber, comprising a casting in which is journaled an inverted U-shape grooved and ribbed strap, a complemental disk adapted to be lockingly engaged by said strap and embraced by a cross-belt and a bolt carrying an eccentric having removable means located adjacent thereto for lockingly holding said eccentric in any position given in connection with said bolt, in com-- lbnnrt on with a spring having terminal bearings engaged" by s'aid bolts and helical springs arranged within each other and so portingly held in operative relation within a two part housing slidable one part within the other and supported in osition by said strap, substantially as and hr the purposes described.

3. The combination with a car spring having terminal bearings, bolts engaging said bearings, an inverted U-slmped locking strap and disk said bolts and an eccentric carried on the other bolt and locked to osition against movement a casting and hel cal below said casting and-supporte in o racarried on one extremity of one of.

rings held tive position by said strap, substantial y as and for the purposes described.

4. A- car spring the'terminal members of which are in frictional contact with cross bolts, a casting and a strap the legs of which are journaled in said casting said strap, said cross bolts respectively carrying a ribbed disk to en age and lockwith a complemental portion 0 eccentric lockingly held to one of said bolts and carry ,a' two part slidable housingfor helical springs supportingly held in operative position by said strap and an by a series of msertpins, substantially as f and for the purposes described.

In Witness whereof, I have hereunto set my I presence of the two subsignature 1n the scribing witnesses. v WILLIAMEVANS. Witnesses:

Trrorms M. SMITH, HELEN b. HQLT. 

